I shudder to hear you all living in places that concern you so much about getting your cars ripped off while your back is turned!! That concerns me as a citizen and leads me to believe that everyone needs a gun-case full of rifles and shotguns like I have here in Tennessee!! And I let every frigging person that comes near my place know how much firepower I have in this house, be it the paperboy or the air-conditioner guy. Every visitor is shown what a great "classic spread of armor" I have "inherited from Grand-Dad".
I use a simple 100 dollar sensor alarm on the car and of course a big steering wheel LOCK FROM HELL! $69.99 at your local store.
It hurts me to hear so many of you living in an area where that might not cut it. I ask that you all move toward my part of the U.S. if possible. It'd make a great FGF party!